Finding the Fourth Proportional to 1,207,809.33, 1,666,782.26 and 663,980.09
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Solution
The fourth proportional to 1,207,809.33, 1,666,782.26 and 663,980.09 is: 916,295.48
Step by Step Solution
- Step 1: Write the proportion equation
1,207,809.33 : 1,666,782.26 = 663,980.09 : x - Step 2: Convert to fraction form
1,207,809.33/1,666,782.26 = 663,980.09/x - Step 3: Cross multiply
1,207,809.33x = 1,666,782.26 × 663,980.09 - Step 4: Simplify right side
1,207,809.33x = 1,106,710,225,841.32 - Step 5: Solve for x
x = 1,106,710,225,841.32/1,207,809.33 - Step 6: Final answer
x = 916,295.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.